My Mac's Setup:
Volume A:
OS X 10.8
Xcode 4.5 or later - 10.6 SDK IS NOT available as Base SDK
Volume B:
OS X 10.7
Xcode 4.3.3 - 10.6 SDK IS available as Base SDK
Volume C:
OS X 10.6
Xcode 4.2 - 10.6 SDK IS available as …
There is a Duplicate command in the Edit Menu (with a default shortcut of ⌘D), but it is (as Halley pointed out) meant for duplication in the Interface Builder part of Xcode.
So, how do you (easily) duplicate a line …
I've just upgraded to xcode 4.0 and I can no longer deploy to iPhone, I get a Apple Mach-O Linker Error, it still works for the simulator though.
Ld /Users/yveswheeler/Library/Developer/Xcode/DerivedData/iParcel-fkeqjcjcbbhjwhdssjptkdxzzzxh/Build/Intermediates/iParcel.build/Debug-iphoneos/…